Sand blasting device for building decoration

Abstract

The utility model belongs to the technical field of sand blasting, and particularly relates to a building decoration sand blasting device which comprises a sand blasting driving machine, a sand blasting output shell is arranged on one side of the sand blasting driving machine, and a material spraying assembly is arranged at the top of the sand blasting output shell; the material spraying assembly comprises a material spraying barrel, the upper end of the material spraying barrel is rotationally connected with a sealing cover, the inner wall of the material spraying barrel is fixedly connected with a plurality of vertical sliding rods, rubbing plugs are vertically and slidably arranged in the vertical sliding rods, and an arc-shaped filter screen is movably arranged below the vertical sliding rods and corresponds to the interior of the sand blasting output shell. A connecting rod is arranged between the sand blasting driver and the sand blasting output shell, and the end, corresponding to the connecting rod, of the sand blasting output shell is connected with an auger. According to the utility model, the vertical movement of the rubbing plug is controlled through air pressure, so that the rubbing plug can rub the inner wall of the material spraying barrel while extruding blasting sand, and the blasting sand can be completely fed into the auger; and meanwhile, the arc-shaped filter screen can be used for filtering the blast sand, so that the equipment is prevented from being blocked by large-particle blast sand.

Description

Technical Field

[0001] This utility model belongs to the field of sandblasting technology, specifically relating to a sandblasting device for building decoration and renovation. Background Technology

[0002] A building exterior wall sandblasting machine is a piece of equipment used for building surface treatment, widely used in building decoration, metal surface treatment, concrete cleaning, stone carving and other fields. It cleans or repairs imperfections on building surfaces by high-speed jetting of abrasive materials (usually sand, metal particles, glass beads, etc.), making the surface smoother and more even, or performing decorative processing.

[0003] Problems with existing technology:

[0004] When sandblasting is added to the blasting assembly of existing building exterior wall sandblasting machines, some sand adheres to the inner wall of the assembly. This sand not only needs to be cleaned but is also wasted. In addition, there is a lack of filtration of the sand after it is added, which makes it easy for large particles in the sand to cause uneven spraying and, in severe cases, to clog the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a sandblasting device for building decoration and renovation, which can realize the up and down movement of the scraping plug by air pressure control, so that it can squeeze the sandblasting while scraping the inner wall of the blasting cylinder to ensure that all the sandblasting is fed into the conveying auger; at the same time, the arc-shaped filter screen can filter the sandblasting to prevent large sandblasting particles from clogging the equipment.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A sandblasting device for building decoration and renovation includes: a sandblasting drive machine, a sandblasting output shell provided on one side of the sandblasting drive machine, and a spraying material assembly provided on the top of the sandblasting output shell;

[0008] The abrasive assembly includes an abrasive cylinder, with a sealing cap rotatably connected to the upper end of the abrasive cylinder. Multiple vertical sliding rods are fixedly connected to the inner wall of the abrasive cylinder, and scraper plugs are vertically slidably arranged between the multiple vertical sliding rods. An arc-shaped filter screen is movably arranged below the vertical sliding rods corresponding to the inside of the sandblasting output housing. A connecting rod is provided between the sandblasting drive motor and the sandblasting output housing. A feed auger is connected to one end of the sandblasting output housing corresponding to the connecting rod. An injection molding tube is fixedly connected to one side of the sandblasting output housing, and a pressure gauge is fixedly connected to the output end of the injection molding tube.

[0009] An air pump is fixedly connected inside the sealing cover. The output and input ends of the air pump extend to the outer side of the top and bottom of the sealing cover. An airflow hole is opened on the side of the sealing cover near the spray cylinder.

[0010] The top of the scraper plug is fixedly connected to a suction cup, and a limiting notch is opened around the scraper plug. The limiting notch is vertically slidably installed with the vertical sliding rod.

[0011] The arc-shaped filter screen has positioning holes around its perimeter, and the sandblasting output shell is fixedly connected to a positioning pin at the position corresponding to the positioning hole. The positioning hole and the positioning pin are engaged and connected.

[0012] A support plate is fixedly connected between the sandblasting output shell and the blasting cylinder, and a sealing limit buckle is fixedly connected to the side of the blasting cylinder opposite to the rotating end of the sealing cover.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This invention enables the up-and-down movement of the scraping plug to be controlled by air pressure, so that it can squeeze the sandblasting material while scraping the inner wall of the blasting cylinder to ensure that all the sandblasting material is fed into the conveyor auger.

[0015] In this invention, the arc-shaped filter screen can filter the sandblasting, preventing large sandblasting particles from clogging the equipment, and is positioned by positioning holes and positioning pins. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the structure of the spraying assembly in this utility model;

[0019] Figure 4 This is a top view of the structure of the spraying assembly in this utility model;

[0020] Figure 5 This is a cross-sectional view of the sealing cap in this utility model;

[0021] Figure 6 This is a schematic diagram of the scraping plug in this utility model;

[0022] Figure 7 This is a schematic diagram of the arc-shaped filter screen in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Sandblasting drive motor; 2. Abrasive assembly; 3. Sandblasting output housing; 201. Abrasive cylinder; 202. Sealing cover; 2021. Air pump; 2022. Airflow hole; 203. Scraping plug; 2031. Limiting notch; 204. Support plate; 205. Connecting rod; 206. Screw conveyor; 207. Arc-shaped filter screen; 2071. Positioning hole; 208. Sealing limit buckle; 209. Suction cup; 2010. Vertical sliding rod; 301. Injection molding tube; 302. Pressure gauge. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-4 As shown, a sandblasting device for building decoration includes: a sandblasting drive 1, a sandblasting output shell 3 on one side of the sandblasting drive 1, and a spraying assembly 2 on the top of the sandblasting output shell 3; a connecting rod 205 is provided between the sandblasting drive 1 and the sandblasting output shell 3, a feeding auger 206 is connected to one end of the sandblasting output shell 3 corresponding to the connecting rod 205, an injection molding tube 301 is fixedly connected to one side of the sandblasting output shell 3, and a pressure gauge 302 is fixedly connected to the output end of the injection molding tube 301; a support plate 204 is fixedly connected between the sandblasting output shell 3 and the spraying cylinder 201, and a sealing limit buckle 208 is fixedly connected to the side of the spraying cylinder 201 away from the rotating end of the sealing cover 202.

[0027] When it is necessary to spray the building wall, the device is pulled to the designated position, and then the sealing cover 202 is rotated to add sand to the spray cylinder 201. After the injection is completed, the sealing cover 202 is rotated to seal the spray cylinder 201. The sealing cover 202 and the spray cylinder 201 are tightly fitted by the sealing limit buckle 208 to ensure its sealing performance. Then, the motor inside the sandblasting drive machine 1 is started to make the connecting rod 205 drive the feeding auger 206 to rotate, thereby squeezing the sand into the injection tube 301. The sand is then sprayed onto the wall surface through the external hose spray gun output from the injection tube 301.

[0028] See attached document Figures 2-7The abrasive assembly 2 includes an abrasive cylinder 201, with a sealing cap 202 rotatably connected to the upper end of the abrasive cylinder 201. Multiple vertical sliding rods 2010 are fixedly connected to the inner wall of the abrasive cylinder 201. Scraping plugs 203 are vertically slidably arranged between the multiple vertical sliding rods 2010. A suction cup 209 is fixedly connected to the top of the scraping plug 203. Limiting notches 2031 are opened around the scraping plug 203, and the limiting notches 2031 are vertically slidably installed with the vertical sliding rods 2010. An arc-shaped filter screen 207 is movably arranged below the vertical sliding rods 2010 corresponding to the interior of the sandblasting output housing 3. Positioning holes 2071 are opened around the arc-shaped filter screen 207. A positioning pin is fixedly connected to the sandblasting output housing 3 at the position corresponding to the positioning hole 2071, and the positioning hole 2071 is engaged with the positioning pin.

[0029] According to the above structure, the scraper plug 203 is vertically slidably connected to the vertical sliding rod 2010 through the limiting notches 2031 opened around its perimeter, preventing the scraper plug 203 from rotating or flipping. During the continuous feeding process of the scraper plug 203 by the arc-shaped filter screen 207, the scraper plug 203 moves downward under the action of air pressure, scraping the inner wall of the spray cylinder 201, causing the sandblasting adhering to the inner wall of the spray cylinder 201 to be squeezed into the lower end of the spray cylinder 201 and sent out by the arc-shaped filter screen 207. During this process, the sandblasting is filtered by the arc-shaped filter screen 207, so that large sandblasting particles are filtered and retained on the upper surface of the arc-shaped filter screen 207, which helps to prevent large particles in the sandblasting from clogging the equipment. The design of the positioning pin can prevent the arc-shaped filter screen 207 from rotating and prevent it from contacting the feeding auger 206 and being damaged.

[0030] See attached document Figures 1-6 An air pump 2021 is fixedly connected inside the sealing cover 202. The output end and input end of the air pump 2021 extend to the outer side of the top and bottom of the sealing cover 202. An airflow hole 2022 is opened on the side of the sealing cover 202 near the spray cylinder 201.

[0031] According to the above structure, the air pump 2021 is used to extract or inject air from the inside of the spraying assembly 2. When spraying, the air pump 2021 injects air into the spraying cylinder 201, so that the scraper plug 203 can move downward with stronger force. When the spraying is finished, the air pump 2021 discharges the air inside the spraying cylinder 201. Under the action of air pressure, the scraper plug 203 moves upward. The suction cup 209 fixedly connected to the scraper plug 203 will adhere to the bottom surface of the sealing cover 202 after the air is extracted, so that the sealing cover 202 can be rotated to open the spraying cylinder 201 for filling.

[0032] The working principle of this utility model is as follows: When it is necessary to spray the building wall, pull the device to the designated position, then rotate the sealing cover 202 and add sand to the spray cylinder 201. After the injection is completed, rotate the sealing cover 202 to seal the spray cylinder 201. The sealing cover 202 and the spray cylinder 201 are tightly fitted by the sealing limit buckle 208 to ensure its sealing performance. Then, start the motor inside the sandblasting drive machine 1 to make the connecting rod 205 drive the feeding auger 206 to rotate, thereby squeezing the sand into the injection tube 301. The sand is then sprayed onto the wall surface through the external hose spray gun output from the injection tube 301.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A sandblasting device for building decoration and finishing, characterized in that, include: A sandblasting drive (1) is provided with a sandblasting output shell (3) on one side, and a spraying assembly (2) is provided on the top of the sandblasting output shell (3). The spraying assembly (2) includes a spraying cylinder (201), a sealing cap (202) is rotatably connected to the upper end of the spraying cylinder (201), a plurality of vertical sliding rods (2010) are fixedly connected to the inner wall of the spraying cylinder (201), a scraping plug (203) is vertically slidably arranged between the plurality of vertical sliding rods (2010), an arc-shaped filter screen (207) is movably arranged below the vertical sliding rods (2010) corresponding to the inside of the sandblasting output shell (3), a connecting rod (205) is arranged between the sandblasting drive (1) and the sandblasting output shell (3), a feeding auger (206) is connected to one end of the sandblasting output shell (3) corresponding to the connecting rod (205), an injection tube (301) is fixedly connected to one side of the sandblasting output shell (3), and a pressure gauge (302) is fixedly connected to the output end of the injection tube (301).

2. The sandblasting device for building decoration and finishing according to claim 1, characterized in that: An air pump (2021) is fixedly connected inside the sealing cover (202). The output end and input end of the air pump (2021) extend to the outer side of the top and bottom of the sealing cover (202). An airflow hole (2022) is opened on the side of the sealing cover (202) near the spray cylinder (201).

3. The sandblasting device for building decoration and finishing according to claim 1, characterized in that: The top of the scraper plug (203) is fixedly connected to a suction cup (209), and a limiting notch (2031) is opened around the scraper plug (203). The limiting notch (2031) is vertically slidably installed with the vertical sliding rod (2010).

4. The sandblasting device for building decoration and finishing according to claim 1, characterized in that: The arc-shaped filter screen (207) has positioning holes (2071) around its perimeter. The sandblasting output shell (3) is fixedly connected with a positioning pin at the position corresponding to the positioning hole (2071). The positioning hole (2071) is engaged with the positioning pin.

5. The sandblasting device for building decoration and finishing according to claim 1, characterized in that: A support plate (204) is fixedly connected between the sandblasting output shell (3) and the blasting cylinder (201), and a sealing limit buckle (208) is fixedly connected to the side of the blasting cylinder (201) away from the rotating end corresponding to the sealing cover (202).

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